This is mostly down to their super-modern-yet-still-very-royal parents who do their best to give their children a normal upbringing. But, believe it or not, at other times, its their own doing.

Here's a reminder of the moments when the Duke and Duchess of Cambridge and their children have flouted royal tradition:

1. A normal start

From the get go, it became clear that the Duke and Duchess wanted to protect their children's privacy as much as possible which, of course, is understandable. For this reason, the young royals are photographed much less, and by way fewer photographers, than their dad, Prince William, and uncle, Prince Harry, were.

When Prince William started nursery in London in 1985, there were reportedly hundreds of journalists and photographers there. Just take a look at this picture of the crowd outside the nursery at the time which we're guessing was quite daunting for a three-year-old.

Press photographers and journalists gathering for William’s first day at nursery in 1985, wowza

Because of their base in Norfolk, George attended nursery in the market town of King's Lynn instead of a central London nursery. The Montessori cost £33 per day or £5.50 per hour when George attended which isn't far off the national average of £116.25 for 25 hours per week, according to the Money Advice Service. At the time, The Telegraphnoted that many of the parents had financial help to pay the fees.

This is quite different to the royals before them. When Prince William - who was the first senior royal to go to nursery and not learn in the palace - and Harry did go to nursery, they attended a private one in central London which, according to the New York Times, cost "about average for private schools in the area but [was] too expensive for most families in Britain." Princess Charlotte's nursery school is also not so cheap.

Before this, it used to be the case that a boy would always be heir over a girl - even if they were younger. This pretty outdated rule was amended in 2013 and means that even if William and Kate have a boy for baby number three Princess Charlotte will still be fourth in line to the throne, and the new baby fifth. History made.

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3. Not living in London

The Duke and Duchess of Cambridge first lived in Anglesey, north Wales after they were married before choosing their Norfolk home of Anmer Hall as their main residence where they would bring up both Prince George and Princess Charlotte.

Again, choosing the quieter county of Norfolk rather than the historic and traditional Kensington Palace showed how the couple wanted to give them a normal childhood away from the spotlight.

4. Prince George's school choice

In September, George started school. Accompanied by his dad, and with just one photographer capturing the moment, he nervously made his way into the building for his big day.

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The chosen school was Thomas' in Battersea, a private school south of the river, in London. While it's not that far from the family home in Kensington Palace, there are other schools closer to the palace with royal reputations. For example, after the family moved back to London from Norfolk, some thought George would attend Wetherby School - where William and Harry both went.

Vanity Fairdescribed Thomas' as an "unconventional" choice while Voguecalled it "unexpected". The fact that Thomas' is co-ed and not an all boys school also breaks with tradition.

5. Not being afraid to show how they really feel in public

We're not sure if this is listed in any royal etiquette guide books but we're pretty sure having a tantrum isn't ideal. However, Princess Charlotte had a bit of a strop when having to get back on a plane in Hamburg at the end of a royal tour of Germany and Poland last year. (Maybe she was just having a fab time?) Prince George has also been seen looking a little sassy on more than one occasion.

Let's be fair, they are toddlers and tantrums are a thing that toddlers do. Also, in Charlotte's defense, I also tend to throw a big mild tantrum when I have to leave my holiday too.

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6. Low-key outfit choices when meeting heads of state

Traditionally, when members of the royal family meet heads of state of other countries its either for a formal photocall or a private banquet. If it's a photocall, they'll be dressed smart af, with the Duchess of Cambridge probably in a tailored fitted dress and the Duke in a suit. If its a banquet, it's the whole shebang: Crown/tiara, jewels, ballgowns and sashes.

However, when Prince George was introduced to US president and First Lady Barack and Michelle Obama in 2016, he wore... an adorable tiny bathrobe. Can you imagine if William had decided he couldn't be bothered to dress up so put on his checked pjs? But little George got away with it nonetheless - he was staying up past his bedtime, after all. The moment he shook the president's hand and showed the couple the rocking horse they bought him was caught on camera, all while wearing his little gown and slippers.

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